Publications by authors named "Groote P"

Titin truncating variants (TTNtv) are the main genetic cause of dilated cardiomyopathies (DCMs). The phenotype and prognosis of probands have been evaluated in several large cohorts. However, few data are available on intrafamilial expressivity.

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Importance: Correction of tricuspid regurgitation using tricuspid transcatheter edge-to-edge repair (T-TEER) in addition to guideline-directed optimized medical therapy (OMT) may improve clinical outcomes.

Objective: To evaluate the efficacy of T-TEER + OMT vs OMT alone in patients with severe, symptomatic tricuspid regurgitation.

Design, Setting, And Participants: Investigator-initiated, prospective, randomized (1:1) trial evaluating T-TEER + OMT vs OMT alone in adult patients with severe, symptomatic tricuspid regurgitation.

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  • The ECOST-CRT study assessed whether integrating a comprehensive remote monitoring (RM) scheme into heart failure (HF) care could improve patient outcomes compared to standard RM methods.
  • 652 patients with cardiac resynchronization therapy (CRT) devices were split into two groups: one receiving only standard monitoring and the other receiving additional symptom tracking and notifications.
  • Despite finding better quality of life improvements in the comprehensive RM group, the study did not show a significant difference in all-cause mortality or hospitalizations for worsening heart failure, partly due to early termination caused by the COVID-19 pandemic.
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  • The study evaluated the CardioMEMS™ HF System in 103 French patients to assess its feasibility, safety, and clinical benefits post-implantation.
  • Over two years, no device-related complications were reported, and the system showed a 50% reduction in heart failure hospitalizations compared to the year before implantation.
  • Additionally, patients experienced lower pulmonary artery pressures and improvements in their functional class and overall quality of life.
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Background: Acute heart failure (AHF) is a leading cause of hospitalization and mortality - especially in patients aged≥65 years in high-income countries - and represents a high healthcare burden. In the past decade, the epidemiology and management of heart failure (HF) has changed, with the emergence of new medical and interventional therapeutics, but up-to-date real-life data are scarce.

Aims: The main objectives are to describe baseline characteristics (with an emphasis on lifestyle, cognitive status, HF knowledge and treatment adherence), management, and in-hospital and mid-term outcomes of AHF patients in France.

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Background And Aims: Based on retrospective studies, the 2022 European guidelines changed the definition of post-capillary pulmonary hypertension (pcPH) in heart failure (HF) by lowering the level of mean pulmonary artery pressure (mPAP) and pulmonary vascular resistance (PVR). However, the impact of this definition and its prognostic value has never been evaluated prospectively.

Methods: Stable left HF patients with the need for right heart catheterization were enrolled from 2010 to 2018 and prospectively followed up in this multicentre study.

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The phage lysin field has done nothing but grow in the last decades. As a result, many different research groups around the world are contributing to the field, often with certain methodological differences that pose a challenge to the interpretation and comparison of results. In this work, we present the case study of three Acinetobacter baumannii-targeting phage lysins (wild-type endolysin LysMK34 plus engineered lysins eLysMK34 and 1D10) plus one lysin with broad activity against Gram-positive bacteria (PlySs2) to provide exemplary evidence on the risks of generalization when using one of the most common lysin evaluation assays: the killing assay with resting cells.

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Background: Haemodynamic variables are prognostic factors in pulmonary arterial hypertension (PAH). However, right heart catheterisation (RHC) is not systematically recommended to assess the risk status during follow-up. This study aimed to assess the added value of haemodynamic variables in prevalent patients to predict the risk of death or lung transplantation according to their risk status assessed by the non-invasive four-strata model as recommended by the European guidelines.

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Background: Overwhelming evidence highlights the negative impact of substance use on HIV care and treatment outcomes. Yet, the extent to which alcohol use disorder (AUD) and other substance use disorders (SUD) services have been integrated within HIV clinical settings is limited. We describe AUD/SUD screening and treatment availability in HIV clinical sites participating in the International epidemiology Databases to Evaluate AIDS (IeDEA) consortium.

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Heart failure is a chronic condition that affects millions of people worldwide and is associated with high morbidity and mortality. Remote monitoring, which includes the use of non-invasive connected devices, cardiac implantable electronic devices and haemodynamic monitoring systems, has the potential to improve outcomes for patients with heart failure. Despite the conceptual and clinical advantages, there are still limitations in the widespread use of these technologies.

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  • The study investigates the prevalence and effects of pathogenic variants in a specific gene related to cardiomyopathy and sudden cardiac death among patients.
  • Out of 9,516 tested individuals, 31 were found to carry pathogenic variants, mostly presenting with dilated cardiomyopathy, with some also experiencing severe cardiac issues.
  • Although the overall prognosis for dilated cardiomyopathy in variant carriers seems favorable, severe conditions and early onset were noted, especially in those with double variants.
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Background: Dilated cardiomyopathy (DCM) is a major cause of heart failure and carries a high mortality rate. Myocardial recovery in DCM-related heart failure patients is highly variable, with some patients having little or no response to standard drug therapy. A genome-wide association study may agnostically identify biomarkers and provide novel insight into the biology of myocardial recovery in DCM.

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Eosinophilic-related clinical manifestations are protean and the underlying conditions underpinning eosinophilia are highly diverse. The etiological workup of unexplained eosinophilia/hypereosinophilia can be challenging, and can lead sometimes to extensive, inappropriate, costly and/or invasive investigations. To date, guidelines for the etiological workup and management of eosinophilia are mainly issued by hematologists, and thus mostly cover the scope of clonal hypereosinophilic syndromes (HES).

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Background: Activins are novel therapeutic targets in pulmonary arterial hypertension (PAH). We therefore studied whether key members of the activin pathway could be used as PAH biomarkers.

Methods: Serum levels of activin A, activin B, α-subunit of inhibin A and B proteins, and the antagonists follistatin and follistatin-like 3 (FSTL3) were measured in controls and in patients with newly diagnosed idiopathic, heritable, or anorexigen-associated PAH (n=80) at baseline and 3 to 4 months after treatment initiation.

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  • Heart failure (HF) registries often have incomplete follow-up data, while medicoadministrative databases contain reliable long-term data but provide less clinical detail, making their combination beneficial yet largely untested.
  • A study aimed to evaluate the effectiveness of linking the FRESH HF registry with the French National Healthcare System database (SNDS) using a probabilistic algorithm to enhance data accuracy.
  • Results indicated that a majority of patients could be matched (94.3% accuracy for deaths) and highlighted discrepancies in data between the two systems, such as higher hospitalization rates in the SNDS compared to the registry cohort.*
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Background: Risk stratification and assessment of disease progression in patients with pulmonary arterial hypertension (PAH) are challenged by the lack of accurate disease-specific and prognostic biomarkers. To date, brain natriuretic peptide (BNP) and/or its N-terminal fragment (NT-proBNP) are the only markers for right ventricular dysfunction used in clinical practice, in association with echocardiographic and invasive haemodynamic variables to predict outcome in patients with PAH.

Methods: This study was designed to identify an easily measurable biomarker panel in the serum of 80 well-phenotyped PAH patients with idiopathic, heritable or drug-induced PAH at baseline and at first follow-up.

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Background And Objective: The definition of pre-capillary pulmonary hypertension (PH) has been modified, with lowering of the mean pulmonary arterial pressure (mPAP) threshold from 25 to 20 mmHg and addition of a mandatory criterion of pulmonary vascular resistance (PVR) ≥ 2 Wood units (WU). Our objectives were: 1/ to estimate the proportion of patients reclassified as having pre-capillary PH when using the new 2022 ESC/ERS hemodynamic criteria (i.e.

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Background: Although ventriculoarterial coupling is associated with better survival in pulmonary arterial hypertension (PAH), existing PAH risk assessment method has not considered echocardiographic criteria of right ventricular to pulmonary artery coupling. We aimed to test the prognostic value of the echocardiographic tricuspid annular plane systolic excursion/systolic pulmonary artery pressure (TAPSE/sPAP) ratio for noninvasive PAH risk assessment.

Methods: We retrospectively studied a cohort of 659 incident PAH patients from 4 independent French PH centers (training cohort: n = 306, validation cohort n = 353) who underwent follow-up TAPSE/sPAP measurement in addition to previously validated noninvasive risk stratification variables.

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  • Patients with mitochondrial diseases are at a higher risk for heart failure (HF) and serious heart-related events, prompting the creation of prediction models to estimate these risks.
  • In a study involving 600 adult patients, over 6.67 years, 4.9% developed HF, and 5.1% experienced arrhythmic major adverse cardiac events (MACE).
  • Key predictors for these heart issues included specific genetic variants, heart structure changes, and reduced heart function as indicated by low ejection fractions.*
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Background: Riociguat and balloon pulmonary angioplasty (BPA) are treatment options for inoperable chronic thromboembolic pulmonary hypertension (CTEPH). However, randomised controlled trials comparing these treatments are lacking. We aimed to evaluate the efficacy and safety of BPA versus riociguat in patients with inoperable CTEPH.

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Objectives: To investigate lung perfusion in systemic sclerosis (SSc).

Methods: The study population included 101 patients who underwent dual-energy CT (DECT) in the follow-up of SSc with pulmonary function tests obtained within 2 months. Fifteen patients had right heart catheterization-proven PH.

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Cellulosomes are multi-enzyme complexes produced by specialised micro-organisms. The spatial proximity of synergistically acting enzymes incorporated in these naturally occurring complexes supports the efficient hydrolysis of lignocellulosic biomass. Several functional designer cellulosomes, incorporating naturally non-cellulosomal cellulases, have been constructed and can be used for cellulose saccharification.

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Introduction: Mobile phones have become indispensable accessories of both our social and professional lives. They increase the quality of healthcare by providing fast communication, and easy access to laboratory results, imaging and patients' files. Simultaneously however, they may act as vectors for potentially pathogenic micro-organisms and as such hold a potential risk for nosocomial infection.

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